Analysis

  • max time kernel
    133s
  • max time network
    135s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-05-2024 07:06

General

  • Target

    39c6052f544fa39be7c80c5461085bc4a9793dba92327a3a2be213305e548885.exe

  • Size

    416KB

  • MD5

    4e602bffee9a8773c34be37e14d07353

  • SHA1

    9843d1ca9f478fb54060d0413b227d0eaa1fa938

  • SHA256

    39c6052f544fa39be7c80c5461085bc4a9793dba92327a3a2be213305e548885

  • SHA512

    98462cf39efd2ed06de56ad387a0fc58d07a8baf747bfeff24220f23112780fd0a022c20cdb687ea40734965f1617c438f081b2ad9b38f8b8080b581ed8f57ff

  • SSDEEP

    6144:uE9fYb7tyBIBFPOofY+dZLomCu9PVDro/rTsKIknXjrxPmHQTNWekuMiq:uEeHtJBFNYnKJro/rIKdXjF+w8Huq

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39c6052f544fa39be7c80c5461085bc4a9793dba92327a3a2be213305e548885.exe
    "C:\Users\Admin\AppData\Local\Temp\39c6052f544fa39be7c80c5461085bc4a9793dba92327a3a2be213305e548885.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\u16g.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u16g.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1964
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 2448
        3⤵
        • Program crash
        PID:2184
    • C:\Users\Admin\AppData\Local\Temp\u16g.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u16g.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3876
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3672
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1528 -s 1164
      2⤵
      • Program crash
      PID:3536
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1528 -ip 1528
    1⤵
      PID:4472
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1964 -ip 1964
      1⤵
        PID:4116

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Are.docx

        Filesize

        11KB

        MD5

        a33e5b189842c5867f46566bdbf7a095

        SHA1

        e1c06359f6a76da90d19e8fd95e79c832edb3196

        SHA256

        5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

        SHA512

        f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

      • C:\ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

        Filesize

        3KB

        MD5

        06e17caddf02cdeacbc4888be7ae74fb

        SHA1

        1e1307c1f526af6b2d3b5ce8c03be24c74d9ae9f

        SHA256

        04708bbf963216ebb4022a1a038c84a2fced8698b8a9d8eb541a6908943420c2

        SHA512

        2dc2ce2f51dcc0429f141b593838ae07a6f21b73b6a292503b7a1ce6b43320dd1dfd394bd577f40c4c7306ee4a901d54fe8e238e4dcd39af0984606ece21f39f

      • C:\Users\Admin\AppData\Local\Temp\u16g.0.exe

        Filesize

        275KB

        MD5

        83493b3717b3e54113b89fe0e5b765a1

        SHA1

        0e0b8f1f0a18258e9130f151c06b163418f7a90e

        SHA256

        3cf852a87b37cd494844030de64eec372931b19570a10e0896fc18c94bb99627

        SHA512

        85dd3e6cfc6ed41fe045627d5f701455d94320e7ad21e2ffaff55607b390224e70b2923c2e327e68463fe91a84755fc04f3e3e753720c7d0ede53ba129df0121

      • C:\Users\Admin\AppData\Local\Temp\u16g.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1528-33-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1528-27-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/1528-2-0x00000000048A0000-0x000000000490C000-memory.dmp

        Filesize

        432KB

      • memory/1528-1-0x0000000002D40000-0x0000000002E40000-memory.dmp

        Filesize

        1024KB

      • memory/1528-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1964-167-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/1964-61-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/1964-64-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3672-148-0x0000016BEEB40000-0x0000016BEEB48000-memory.dmp

        Filesize

        32KB

      • memory/3672-145-0x0000016BEF210000-0x0000016BEF218000-memory.dmp

        Filesize

        32KB

      • memory/3672-108-0x0000016BEA1F0000-0x0000016BEA1FC000-memory.dmp

        Filesize

        48KB

      • memory/3672-110-0x0000016BEA350000-0x0000016BEA374000-memory.dmp

        Filesize

        144KB

      • memory/3672-111-0x0000016BEA380000-0x0000016BEA38A000-memory.dmp

        Filesize

        40KB

      • memory/3672-112-0x0000016BEA640000-0x0000016BEA66A000-memory.dmp

        Filesize

        168KB

      • memory/3672-113-0x0000016BEA670000-0x0000016BEA722000-memory.dmp

        Filesize

        712KB

      • memory/3672-114-0x0000016BEA770000-0x0000016BEA7C0000-memory.dmp

        Filesize

        320KB

      • memory/3672-115-0x0000016BEA720000-0x0000016BEA742000-memory.dmp

        Filesize

        136KB

      • memory/3672-109-0x0000016BEA1E0000-0x0000016BEA1F4000-memory.dmp

        Filesize

        80KB

      • memory/3672-106-0x0000016BEA3B0000-0x0000016BEA4BA000-memory.dmp

        Filesize

        1.0MB

      • memory/3672-127-0x0000016BD18B0000-0x0000016BD18BA000-memory.dmp

        Filesize

        40KB

      • memory/3672-140-0x0000016BEA7C0000-0x0000016BEAAC0000-memory.dmp

        Filesize

        3.0MB

      • memory/3672-107-0x0000016BD1820000-0x0000016BD1830000-memory.dmp

        Filesize

        64KB

      • memory/3672-146-0x0000016BEEB50000-0x0000016BEEB88000-memory.dmp

        Filesize

        224KB

      • memory/3672-147-0x0000016BEEB20000-0x0000016BEEB2E000-memory.dmp

        Filesize

        56KB

      • memory/3672-96-0x0000016BCC3C0000-0x0000016BCFBF4000-memory.dmp

        Filesize

        56.2MB

      • memory/3672-149-0x0000016BEF4C0000-0x0000016BEF4CA000-memory.dmp

        Filesize

        40KB

      • memory/3672-151-0x0000016BEF240000-0x0000016BEF262000-memory.dmp

        Filesize

        136KB

      • memory/3672-150-0x0000016BEF4E0000-0x0000016BEF542000-memory.dmp

        Filesize

        392KB

      • memory/3672-152-0x0000016BEFA70000-0x0000016BEFF98000-memory.dmp

        Filesize

        5.2MB

      • memory/3672-155-0x0000016BEF260000-0x0000016BEF26C000-memory.dmp

        Filesize

        48KB

      • memory/3672-156-0x0000016BEF340000-0x0000016BEF3B6000-memory.dmp

        Filesize

        472KB

      • memory/3672-168-0x0000016BEABE0000-0x0000016BEABFE000-memory.dmp

        Filesize

        120KB

      • memory/3876-50-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3876-62-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB